Method of securing bushing mountings for metallic drums



Oct. 17, 1933. 1.. B. WACKMAN METHOD OF SECURING BUSHING MOUNTINGS FOR METALLIC DRUMS Filed Feb. 20, 1930 Patented Oct. 17, 1933 UNITED STATES DIETHOD F SECURING BUSHING MOUNT- INGS FOR METALLIC DRUMS Louis B. Wackman, st. Louis, Mo.

Application February 20, 1930. Serial No. 429,907

4 Claims. (01. 29-148) This invention relates to improvements in a bushing mounting for metallic drums and method of securing the bushing to the drum and has for its primary object to provide a bushing of a simple construction with improved means which are cooperable with the bushing mounting or seat formed in the drum head, for welding the bushing and seat to each other.

Another object of the invention is to provide a metallic barrel or drum with a bushing and seat therefor, the bushing and seat each having improved means which are cooperable for holding the bushing in nested relation in the seat ready for the welding operation for securing 1 the bushing and seat together.

A further object of the invention is in providing an improved method of mounting a sealing plug bushing to a metallic drum or container.

Other and further objects will appear in the specification and be specifically pointed out in the appended claims, reference being'had to the accompanying drawing, exemplifying the invention, and in which:-

Figure 1 is a plan view showing a sealing plug bushing secured to a fragmentary portion of a metallic drum head.

Figure 2 is a fragmentary vertical section taken through the bushing seat which is formed in $0 the metallic drum head.

Figure 3 is a fragmentary vertical section taken approximately on the line III--III of Fig. 1.

Figure 4 is a fragmentary vertical section taken approximately onthe line IV-IV of Fig. 1.

Figure 5 is a view similar to Fig. 4 showing the bushing having its lower or inner portion welded to the bushing seat. v

Referring by numerals to the accompanying drawing, 1 designates a portion of a metallic drum head and formed therein isa bung hole 2. In the formation of the bung hole, a depending tapered neck 3 is provided, and formed concentrically of the bung hole in opposite disposition is a pair of annular extending ribs 4, there being a gap 5 formed between opposing ends of the ribs.

The disposition of the ribs 4 to the bung hole 2 provides an annular seat 6 which is for the reception of the flange 7 of a bushing 8,

said bushing having a tapered depending neck 9 and interiorly formed threads 10.

The neck 9 of the bushing 8 is longer than the neck 3 of the bung hole 2, and when the 66 bushing neck 9 is mounted in the bung hole 2, the flange 7 of the bushing will rest upon the seat 6. In this seated position of the bush- 1 ins: 8, the lower end 11 of the bushing will extend beyond the lower end of the neck 3 of the bung hole 2. Thelower end 11 of the bushing is made relatively thin so as to provide an annular edge as shown in Figs. 3 and 4, the thin edge being formed by providing an interior bevel 14 on the inside of the neck 9 beneath the lowermost thread.

The bushing 8 is provided with a pair of oppositely disposed ears 12 which extend from the flangel, the end of each ear being turned upwardly and provided with an aperture 13 and in mounting the bushing in the bung hole 2, the ears 12 are disposed in respective gaps 5 which are provided between the ends of the ribs 4. The ears 12 and their apertures are for the insertion of a sealing wire for engagement with the plug not shown.

' After the bushing has been mounted in the bung hole, a swedging tool is inserted in the lower or inner end of the neck 9 of the bushing in engagement with the beveled edge 14, and the end 11 which extends beneath the neck 3 of 'the bung hole 2 is swedged outwardly as designated at 15 in Fig. 4 into lapping engagement with the lower edge 16 of the bung hole neck 3 thereby tightly drawing the bushing 8 in seated position with the seat 2 and neck 3 of the drum head 1, ready for the welding operation as shown in Fig. 4.

In the welding operation, the arc or flame of the welding tool is brought into contact with the outwardly swedged lower edge 11 of the 90 neck 9 and in the welding, is united with the lower edge of the neck 3 of the drum head as shown at 17 in Fig. 5 thus securely uniting and sealing the bushing 8 with the neck 3 of the drum head. Obviously the relatively thin edge 11 of the neck 9 of the bushing 8 greatly enhances the welding operation.

Heretofore in the welding of bushings to drum heads, it is required that a jig or the like be used for holding the bushing in place during 100 the welding operation. With this method of first inserting the edge 11 of the neck of the bushing over the lower edge of the neck 3 of the bung hole, the swedging operation will securely draw and hold the bushing in seated po- 105 sition during the welding operation.

It is to be noted that the beveled edge 14 continues from the lowermost thread of the threading 10 of the bushing 8 to the lower end 11 thereof, the beveled edge 14 therefore being the portion of the bushing which is welded and consequently the welding operation will not destroy or distort the lowermost thread of the bushing.

The tapered depending neck 9 of the bushing 8 and the tapered depending neck 3 of the wall of the bung hole 2, not only assists in the mounting of the bushing in the neck of the bung hole,

but in addition afiords a nested relation which provides for reinforcement of one part with the other part.

While one illustrative embodiment of the invention has been described in detail, it is not my intention to limit its scope to that particular embodiment or otherwise than by the terms of the appended claims.

What I claim.is:-

1. The methodof securing a bushing having a tapered neck to a tapered bung hole neck of a metallic container consisting of inserting the Jushing neck in the bung hole neck, said bushing neck having its inner edge beveled off to provide a knife edge for facilitating subsequent welding, of drawing the tapered bushing neck in firmly seated position in the tapered bung hole 1eck by swedging the extending end of said bushing neck over the extending end of the bung hole neck, and of welding the swedged end of the bushing neck to the extending end of the bung holeneck.

- 2. The method of applying bushings tometal containers, consisting of forming an annular converging neck in the container wall, fitting into said neck a bushing having a tapering annular part beveled of! at its inner edge to provide a knife edge for facilitating subsequent welding, of outwardly swedging the inner end of said annular part over the inner end of said neck, and welding together the contacting inner, ends of said neck and said bushing.

3. The method of applying bushings to metal containers, consisting of forming an annular tapering neck in the container wall, inserting a bushing having a like tapered annular neck in. said container wall neck beveled oil. at its inner edge to provide a knife edge for facilitating subsequent welding, of swedging the inner end of said bushing neck over the edge of the inner end of said container wall neck for holding the bushing therein, and welding together the contacting inner ends of said necks.

4. The method of applying bushings to metal containers, consisting of punching a'hole in the container wall, concentrically stamping a tapered neck in the container wall around said hole, inserting a flanged bushing having a tapered tubular extension in said container wall neck beveled oil at its inner edge to provide a knife edge for facilitating subsequent welding, swedging the extending end ofsaid tubular extension over the end. of said container wall neck, and welding adjacent ends of said neck and said tubular extensions. I

LOUIS B. WACKMAN. 

